CodeProject: System Information. Free source code and programming help

This program shows you a very simple way to determine your PC hardware and software. It queries operating system for the following Hardware/Software:

Program structure

By clicking the combo box and changing it's item, selected item is determined and it's ID passed to Process member function of dialog. The Process member function takes ID of query and returns the proper result. Body of Process has a lot of code to prepares result and if any error has occurred, the error string will be returned.

How to use

Functions

Below table shows all functions that are used to determine Hardware/Software of the computer.

Requirements

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Little mistake.

Member 2844188

3:18 15 Jul '08

Hello, Thank you very much for your source, it's really too nice. There is a little mistake when select item in the combox, this is due to a forgoten "," in the initialisation of Query[NUM_OF_QUERIES][50] in SysInfoDefs.h after "Hard Disk Features (S.M.A.R.T.)" Best regards Aramii.
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Class CPUInfo do not support Chip intel ?

To Quang Hiep

4:18 5 May '08

Hi Iain Chesworth Thank you very much for Class CPUinfo My program , I want to get CPU info with all chip. But I don't Please help me ?
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hellp me plz

lays

0:13 19 Apr '08

hi mr riaz plz help me i post Qustion bt no anser i m lays plz helpme im student n wants ur help on this project
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help me

lays

21:32 14 Apr '08

system can not execute the projct
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help

lays

9:38 8 Apr '08

system information hardware.software by abbas riaz;have 32 errors hw can i used it ??????????????????
error list is

ysInfoDefs.cpp(695) : error C2065: 'DRIVE_LAYOUT_INFORMATION_EX' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(695) : error C2146: syntax error : missing ';' before identifier 'dli'
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(695) : error C2065: 'dli' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(709) : error C2065: 'IOCTL_DISK_GET_DRIVE_LAYOUT_EX' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(718) : error C2228: left of '.PartitionCount' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(721) : error C2228: left of '.PartitionCount' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(726) : error C2228: left of '.PartitionStyle' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(728) : error C2065: 'PARTITION_STYLE_MBR' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(728) : error C2051: case expression not constant
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(732) : error C2228: left of '.Mbr' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(732) : error C2228: left of '.Signature' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(736) : error C2065: 'PARTITION_STYLE_GPT' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(736) : error C2051: case expression not constant
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(740) : error C2228: left of '.Gpt' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(740) : error C2228: left of '.DiskId' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(743) : error C2228: left of '.Gpt' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(743) : error C2228: left of '.StartingUsableOffset' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(745) : error C2228: left of '.Gpt' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(745) : error C2228: left of '.UsableLength' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(747) : error C2228: left of '.Gpt' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(747) : error C2228: left of '.MaxPartitionCount' must have class/struct/union type
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(751) : error C2065: 'PARTITION_STYLE_RAW' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(751) : error C2051: case expression not constant
C:\Documents and Settings\amna\Desktop\sys\SysInfoDefs.cpp(761) : warning C4065: switch statement contains 'default' but no 'case' labels
SysInfoDlg.cpp
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(305) : error C2065: 'CSIDL_WINDOWS' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(311) : error C2065: 'CSIDL_SYSTEM' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(359) : error C2065: 'CSIDL_LOCAL_APPDATA' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(365) : error C2065: 'CSIDL_MYDOCUMENTS' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(371) : error C2065: 'CSIDL_PROGRAM_FILES' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(401) : error C2065: 'CSIDL_ADMINTOOLS' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(425) : error C2065: 'CSIDL_PROFILE' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(461) : error C2065: 'CSIDL_COMMON_ADMINTOOLS' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(467) : error C2065: 'CSIDL_COMMON_APPDATA' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(473) : error C2065: 'CSIDL_COMMON_DOCUMENTS' : undeclared identifier
C:\Documents and Settings\amna\Desktop\sys\SysInfoDlg.cpp(479) : error C2065: 'CSIDL_COMMON_TEMPLATES' : undeclared identifier
Generating Code...
Error executing cl.exe.

SysInfo.exe - 34 error(s), 1 warning(s)

1.00/5

Your source is very valueble to me!

Ingenious001

2:39 28 Mar '07

Hi Razi, Your source for retrieving system informations is very good and very clear! It helped me a lot with a small project (getting status and notifications of a server, when something is not working properly). The other acrticles of yours are also very good, especially the one about GPS. I just want to say thank you for your good help. We are an example of helping each other
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Re: Your source is very valueble to me!

A. Riazi

1:57 30 Mar '07

Hi, Thanks for your comment. Best regards, A. Riazi
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Re: Your source is very valueble to me!

Ingenious001

4:01 3 Apr '07

Mr. A.Razi,

I hope you can answer on this question, if you're able to make some time free in your valueble free spare time. How can I distinguish between a USB memory stick and a Harddisk drive? Because when I connect a usb stick into the pc, I get the USB memory size and etc...

Suddenly in my mind comes up to check the filesystem type ( HDD = NTFS, USB = FAT32 ), something like that. What do you think about that?

**We are an example of helping each other**

2.00/5

Re: Your source is very valueble to me!

Rarencjusz

0:48 11 Jun '07

Yep, really great job! Keep up the good work. Regards
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Creating a new partition

22:11 11 Mar '07

Can you give me any tips to create a new partition in Hard Disk?
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Hard Disk's Physical Information

1:34 6 Mar '07

I have some questions about HD Physical information. Can you help me in this regard. Questions: 1)Where the Physical information( say Cylinder, Head, Sector)reside? 2) How can I get these information?
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Unable to download the source

Nanda Kishore_SGS

23:43 29 Oct '06

Dear All, When I try to download the source, A pop-up window displayed asking for username and password. I have provided my code project username and password and clicked ok - still I am unable to download the source.. help me..
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SCSI S.M.A.R.T. info?

silikon2

6:39 5 Oct '06

Hi, great program. Any code or thoughts on how to detect S.M.A.R.T. info for SCSI drives? Thanks, Will
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AMD 64

Raul Simcic

23:54 6 Aug '06

I tried to retrive the CPU serial number of the AMD 64 but it doesn't work . What must I do to get the 64 bit procesor serial number. Thanks
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Re: AMD 64

A. Riazi

0:52 7 Aug '06

If I remembered correctly, the code only works with Intel CPUs. Try google or AMD site to find some code for retrieving CPU serial number. Best regards, A. Riazi
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ERROR_INSUFFICIENT_BUFFER

Randor

18:40 30 May '06

Hi Abbas

I compiled and executed your sample, I recieved a error in the edit box when I chose Partitions from the combo. So I took a look a your source code.

Heres what I discovered:

In QueryPartitions funtion, the call to DeviceIoControl will sometimes fail with the error code ERROR_INSUFFICIENT_BUFFER. This is because the struct DRIVE_LAYOUT_INFORMATION_EX that needs to be passed to DeviceIoControl is variable length, the size of the data returned depends on the number of drives, and partitions.

In addition, some driver implementations will return a partial buffer, they will simply write whatever data they can fit into the buffer. DeviceIoControl will fail with error code ERROR_MORE_DATA in this case.

These conditions can be handled by doing the following:

First change variable dli declaration to:

DRIVE_LAYOUT_INFORMATION_EX* dli = NULL;

Here is the code to insert:

		DWORD dwbytes=0;
		DWORD dwlastErr = 0;
		int i=0;

		do
		{
			if(NULL != dli)
			{
				delete[] (char*)dli;
				dli = NULL;
			}

			DWORD datasize = sizeof(DRIVE_LAYOUT_INFORMATION_EX) + i * sizeof(PARTITION_INFORMATION_EX);
			dli = (DRIVE_LAYOUT_INFORMATION_EX*)new char[datasize];
			if(dli)
			{
				bResult=DeviceIoControl(hDevice,IOCTL_DISK_GET_DRIVE_LAYOUT_EX,NULL,0,dli, datasize,&dwbytes,(LPOVERLAPPED) NULL);
				dwlastErr = GetLastError();
				i++;
			}
		}
		while((dwbytes == 0 && dwlastErr == ERROR_INSUFFICIENT_BUFFER) || dwlastErr == ERROR_MORE_DATA);

The code needs to be modified here:

	while (hDevice!=INVALID_HANDLE_VALUE)
	{
***DELETE OLD CODE HERE***
***INSERT NEW CODE HERE***

		if (bResult)
		{

Then at the bottom of the QueryPartitions function add:

	if(NULL != dli)
	{
		delete[] (char*)dli;
		dli = NULL;
	}

I believe something similar is required for each function where you are calling DeviceIoControl. Additional error handling is required.

Thanks for your articles, I look forward to your future contributions!

-Randor (Dave Delaune)

Can you help me.

terahez

1:32 11 Apr '06

Hi A.Riazi, can I call you like that.I'm a student from Viet Nam and I'm doing a project to get system information but it's hard to find document about this topic.I have seen your code but I don't know how it's work .Can you give or introduce me some document about getting system information. -- modified at 6:34 Tuesday 11th April, 2006
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Re: Can you help me.

A. Riazi

9:43 11 Apr '06

Hi, You have two options for getting system informations: 1- WMI 2- Win32 API (like the one that I did). I suggest you to read Win32 API documentations. Best regards, A. Riazi
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Re: Can you help me.

terahez

23:12 11 Apr '06

I see that you have use assembly code in your source .What does it do? -- modified at 4:15 Wednesday 12th April, 2006
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Re: Can you help me.

A. Riazi

23:22 11 Apr '06

The assembly code was written by someone else for getting CPU info. A. Riazi
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Re: Can you help me.

icsvoice

6:21 1 May '06

hi mr a. riazi i need your help in a smal project can u contact me plz quraischi@msn.com hello world
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Hard Drive Serial Number

abubakar_noman

4:32 5 Mar '06

Can you please include a function to retrieve hard Drive serial number (atleast first drive). It would be very helpful. Thanks nomi knowmi@gmail.com
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compilation error

chunnu_80

5:39 17 Jan '06

i am getting compilation error CSIDL_WINDOWS etc. as undeclared identifier. i read the solution for it posted.but i couldn'g understand that. can u just explain how and what i have to add breifly.
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Small mistake for Total memory

cpsworld

8:08 11 Jan '06

At line 286 in SysInfoDefs.cpp you wrote: ceil(memoryStatus.dwTotalPhys/1024/1024) It should be: ceil(memoryStatus.dwTotalPhys/1024.0/1024.0) if you want the ceil function to have an effect. The best would be: ceil(memoryStatus.dwTotalPhys/1048576.0) One division less Crayon
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Re: Small mistake for Total memory

A. Riazi

1:10 12 Jan '06

Thanks for your comment. Best regards, A. Riazi
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Last Visit: 7:24 23 Nov '09 Last Update: 7:24 23 Nov '09

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`CString DetermineIEVer();`	Determining Internet Explorer Version (Build Number)
`CString QueryHardDisks();`	Calculating Number of Hard Disks and Number of Cylinders, Tracks per Cylinders, Sectors per Tracks, Bytes per Sector and Total Capacity for each Hard Disks
`CString QueryDriveSpace();`	Calculating Drive Space/Free Space/Used Space of All Hard Drives
`CString QueryCDDrive();`	Determining Number of CD Drives
`CString QueryTotalRAM()`	Calculating Total Physical RAM (Random Access Memory)
`CString QueryFreeRAM();`	Calculating Free Physical Memory
`CString QueryUserName()`	User Name of current user
`CString QueryComputerName();`	Computer Name
`CString QueryCPUInfo();`	Number of CPU Installed on Mother Board
`CString QueryCPUSpeed();`	Speed of each CPU
`CString QueryCPUID();`	ID of each CPU
`CString QueryCPUVendorID();`	ID of CPU Vendor
`CString QueryResolution();`	Calculating Monitor Resolution in Pixel
`CString QueryPixelDepth();`	Calculating Color Depth of any Pixel
`CString QueryOS();`	Determining Operating System Version (Build Number) and it's Service Pack
`CString QueryLocalIPAddress();`	Determining IP Address of Computer
`CString QueryHDDSmartCommand();`	Query IDE hard disks that support SMART (Self-Monitoring Analysis & Reporting Technology).
`CString QueryDirectory(char* sFolder,int iFolder);`	Determining Full Path of Specified Folder where `sFolder` is Folder Name and `iFolder` is Folder Shell ID Number
`CString GetCommandError();`	Determining last occurred error

Introduction

Program structure

How to use

Functions

Requirements